Covellite Vs Verdelite
Origin
Mexico
Afghanistan, Brazil, Mozambique, Sri Lanka, USA
Color
Blue, Blue, Black
Green, Brown
Streak
Grey, Black, gray
Not Available
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
Not Available
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Not to wear with
Not Available
Not Available
Powers
Not Available
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Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Flexible
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
2.90-3.40
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {0001}
Not Available
Mohs Hardness
Not Available
7-7.5
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Luster
Resinous
Not Available
Pleochroism
Marked
Strong: dark green yellow
Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Transparent, Translucent
Refractive Index
1.45-2.62
1.614-1.666
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Not Available
Birefringence
Not Available
0.014-0.040
Clarity
OpaqueAnthony et al
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Covellite Vs Verdelite Fracture
Fracture is an important parameter when you compare Covellite and Verdelite Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite Vs Verdelite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Covellite is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas. Verdelite fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).
Covellite Vs Verdelite Luster
A primary knowledge about Covellite vs Verdelite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Covellite exhibits Resinous luster.